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PP - CO2 LASER SURGERY IN PATIENTS WITH ORAL LEUKOPLAKIA: OUTCOME AND FOLLOW-UP OF TWO STUDY CASES
OOOO Volume 123, Number 2 pain episodes and swelling occurred. Interspersed maintenance periods and suspension of drug therapy have kept maintains the clinical status stable. It is believed that the lesion will disappear as the child grows.
PP - CO2 LASER SURGERY IN PATIENTS WITH ORAL LEUKOPLAKIA: OUTCOME AND FOLLOW-UP OF TWO STUDY CASES. CAMILA CABRAL DE MEDEIROS MARINGOLI, ANA MARIA HOYOS CADAVID, CELSO AUGUSTO LEMOS. SCHOOL OF DENTISTRY, UNIVERSITY OF SAO PAULO. Oral leukoplakia is a thickened white patch formed in the mouth lining that cannot be rubbed off. The majority of the authors recommend surgical removal as treatment, which can be carried out with a cold knife, electrocautery, cryosurgery or laser. This article addresses the study cases of two patients treated with CO2 Laser Surgery: Case 1 - A male patient, Caucasian, 67 years old, presenting a 4 cm x 3 cm large, asymptomatic, white plaque on the gingiva, buccal mucosa and vestibular fornix for one year; Case 2 - A female patient, 80 years old, Caucasian, non-smoker and non-alcoholic presenting a 2 cm x 3 cm large, white plaque on the border of the tongue for 4 years. Both patients were treated with CO2 Laser; all the visible lesions were removed. The immediate postoperative period presented only minor symptoms; Paracetamol was used only during the first 24 hours. After follow-up periods of one and two years, no recurrence was observed. Although Laser surgery presented good results, the follow-up of patients must be constant, and the technique does not seem to interfere with the natural course of oral leukoplakia.
PP - A PRESENTATION OF CHONDROBLASTIC OSTEOSARCOMA IN A PREGNANT PATIENT. LETÍCIA OLIVEIRA TONIN, MATHEUS HENRIQUE ALVESE DE LIMA, MARIA FERNANDA BARTHOLO SILVA, JOYCE GIMENEZ MENON, ANA CLAÚDIA SCARAFICCI, ANTÔNIO GERALDO DO NASCIMENTO, FÁBIO DE ABREU ALVES. AC CAMARGO CANCER CENTER. Osteosarcoma is a malignant bone tumor, uncommon in jawbones. Although the relationship of this tumor with pregnancy is not well established, some cases of osteosarcoma have been presented in pregnant patients. This study aims report an advanced case of osteosarcoma in a 31-year-old woman patient, referred to the Stomatology Department in the 31st week of pregnancy, to evaluate a gingival lesion with duration of 4 months. The lesion increased gradually after she visited a dentist, who diagnosed it as granuloma gravidarum. Extraoral examination showed left facial asymmetry. On intraoral examination, an extensive tumor affecting the left maxilla was observed. Magnetic resonance showed an expansive tumor involving the maxilla, extending into the infra orbital region, compressing the orbital nerve. The diagnostic hypothesis of osteosarcoma was confirmed by incisional biopsy. A multidisciplinary team agreed on interrupting pregnancy in the 33rd week. Treatment consisted of chemotherapy with the purpose of achieving tumor regression for later resection. In conclusion, this case showed a misdiagnosed osteosarcoma that compromised the patients prognosis. Reports have shown fast development of osteosarcoma in pregnant patients.
ABSTRACTS Abstracts e73 PP - A CHALLENGING CASE OF GIANT CELL GRANULOMA. CAROLINE ZIMMERMANN, MARIA INÊS MEURER, JUSSARA MARIA GONÇALVES, ELENA RIET CORREA RIVERO, FILIPE MODOLO SIQUEIRA, EMANUELLY DA SILVA CHRUN, LILIANE JANETE GRANDO. FEDERAL UNIVERSITY OF SANTA CATARINA/UNIVERSITY HOSPITAL OF FEDERAL UNIVERSITY OF SANTA CATARINA. Man, 61, referred (March/2010) due to jaw swelling for 20 days which hindered prosthesis use. Radiographs showed radiolucent lesion of unclear limits between 33-43, cortical expansion and slight periosteal reaction. Physical examination revealed an anterior increased volume in the jaw (6cm), smooth and continuous surface, purplish, painful on touch. Incisional biopsy was performed with histopathological diagnosis of Giant Cell Granuloma. Hematological exams were within normality. Intralesional dexamethasone and calcitonin spray (800 IU/day) was used. Follow-up radiographs showed internal bone formation and peripheral corticalization. Computed Tomography (CT) was requested and lesion enucleation was performed (April/2012), maintaining the calcitonin for 3 more months. Imaging exams revealed significant bone repair. In March/2013, another increased volume was observed on the left side of the jaw, without color alteration, osseous palpation and cortical disruption, confirmed by CT, which showed hypodense areas in different regions of the jaw. New hematological exams showed slight increase of parathyroid hormone. Excisional biopsy with bone margin treatment was performed. Calcitonin and dexamethasone were restarted. The patient was referred to endocrinology, diagnosing a benign thyroid lump. Radiograph (March/2015) revealed increased alveolar cortical radiopacity and internal bone formation. A multidisciplinary team in our service is already treating the patient.
PP - CALCIFYING EPITHELIAL ODONTOGENIC TUMOR WITH UNUSUAL CLINICOPATHOLOGICAL FEATURES: A CASE REPORT. BRENO LUIZ DE OLIVEIRA, DIEGO ANTONIO COSTA ARANTES, JORGE ELIAS KALUF TOMEH, ELISMAURO FRANCISCO DE MENDONÇA, MARIA ALVES GARCIA SILVA. UFG. Calcifying epithelial odontogenic tumor (CEOT) is an uncommon odontogenic neoplasm of unusual clinical behavior and distinctive histopathology. A 30-year-old patient came to the Department of Oral Medicine, School of Dentistry at the Federal University of Goiás with the “puffy face right” complaint. He reported previous episodes of swelling with spontaneous improvement. The latest swelling showed no regression. The extra- and intraoral physical examination showed asymmetry in the lower face, swelling in the right jaw region, and absence of the right second molar. The panoramic radiography and computed tomography revealed the presence of an osteolytic lesion (around 3.5 cm), root resorption of the second and third molars, and cortical bone erosion/perforation. An incisional biopsy was performed. The histological findings revealed a proliferation of islands of polyhedral epithelial cells with cell pleomorphism and nuclear intensity, permeated by a fibrous stroma and amyloid deposits. An immunohistochemical panel was performed and the final diagnosis was a CEOT. Patient underwent surgical excision of the lesion. A clinical and radiographic follow-up two years later presented no signs of recurrence.
PP - CO2 LASER SURGERY IN PATIENTS WITH ORAL LEUKOPLAKIA: OUTCOME AND FOLLOW-UP OF TWO STUDY CASES. CAMILA CABRAL DE MEDEIROS MARINGOLI, ANA MARIA HOYOS CADAVID, CELSO AUGUSTO LEMOS. SCHOOL OF DENTISTRY, UNIVERSITY OF SAO PAULO. Oral leukoplakia is a thickened white patch formed in the mouth lining that cannot be rubbed off. The majority of the authors recommend surgical removal as treatment, which can be carried out with a cold knife, electrocautery, cryosurgery or laser. This article addresses the study cases of two patients treated with CO2 Laser Surgery: Case 1 - A male patient, Caucasian, 67 years old, presenting a 4 cm x 3 cm large, asymptomatic, white plaque on the gingiva, buccal mucosa and vestibular fornix for one year; Case 2 - A female patient, 80 years old, Caucasian, non-smoker and non-alcoholic presenting a 2 cm x 3 cm large, white plaque on the border of the tongue for 4 years. Both patients were treated with CO2 Laser; all the visible lesions were removed. The immediate postoperative period presented only minor symptoms; Paracetamol was used only during the first 24 hours. After follow-up periods of one and two years, no recurrence was observed. Although Laser surgery presented good results, the follow-up of patients must be constant, and the technique does not seem to interfere with the natural course of oral leukoplakia.
PP - A PRESENTATION OF CHONDROBLASTIC OSTEOSARCOMA IN A PREGNANT PATIENT. LETÍCIA OLIVEIRA TONIN, MATHEUS HENRIQUE ALVESE DE LIMA, MARIA FERNANDA BARTHOLO SILVA, JOYCE GIMENEZ MENON, ANA CLAÚDIA SCARAFICCI, ANTÔNIO GERALDO DO NASCIMENTO, FÁBIO DE ABREU ALVES. AC CAMARGO CANCER CENTER. Osteosarcoma is a malignant bone tumor, uncommon in jawbones. Although the relationship of this tumor with pregnancy is not well established, some cases of osteosarcoma have been presented in pregnant patients. This study aims report an advanced case of osteosarcoma in a 31-year-old woman patient, referred to the Stomatology Department in the 31st week of pregnancy, to evaluate a gingival lesion with duration of 4 months. The lesion increased gradually after she visited a dentist, who diagnosed it as granuloma gravidarum. Extraoral examination showed left facial asymmetry. On intraoral examination, an extensive tumor affecting the left maxilla was observed. Magnetic resonance showed an expansive tumor involving the maxilla, extending into the infra orbital region, compressing the orbital nerve. The diagnostic hypothesis of osteosarcoma was confirmed by incisional biopsy. A multidisciplinary team agreed on interrupting pregnancy in the 33rd week. Treatment consisted of chemotherapy with the purpose of achieving tumor regression for later resection. In conclusion, this case showed a misdiagnosed osteosarcoma that compromised the patients prognosis. Reports have shown fast development of osteosarcoma in pregnant patients.
ABSTRACTS Abstracts e73 PP - A CHALLENGING CASE OF GIANT CELL GRANULOMA. CAROLINE ZIMMERMANN, MARIA INÊS MEURER, JUSSARA MARIA GONÇALVES, ELENA RIET CORREA RIVERO, FILIPE MODOLO SIQUEIRA, EMANUELLY DA SILVA CHRUN, LILIANE JANETE GRANDO. FEDERAL UNIVERSITY OF SANTA CATARINA/UNIVERSITY HOSPITAL OF FEDERAL UNIVERSITY OF SANTA CATARINA. Man, 61, referred (March/2010) due to jaw swelling for 20 days which hindered prosthesis use. Radiographs showed radiolucent lesion of unclear limits between 33-43, cortical expansion and slight periosteal reaction. Physical examination revealed an anterior increased volume in the jaw (6cm), smooth and continuous surface, purplish, painful on touch. Incisional biopsy was performed with histopathological diagnosis of Giant Cell Granuloma. Hematological exams were within normality. Intralesional dexamethasone and calcitonin spray (800 IU/day) was used. Follow-up radiographs showed internal bone formation and peripheral corticalization. Computed Tomography (CT) was requested and lesion enucleation was performed (April/2012), maintaining the calcitonin for 3 more months. Imaging exams revealed significant bone repair. In March/2013, another increased volume was observed on the left side of the jaw, without color alteration, osseous palpation and cortical disruption, confirmed by CT, which showed hypodense areas in different regions of the jaw. New hematological exams showed slight increase of parathyroid hormone. Excisional biopsy with bone margin treatment was performed. Calcitonin and dexamethasone were restarted. The patient was referred to endocrinology, diagnosing a benign thyroid lump. Radiograph (March/2015) revealed increased alveolar cortical radiopacity and internal bone formation. A multidisciplinary team in our service is already treating the patient.
PP - CALCIFYING EPITHELIAL ODONTOGENIC TUMOR WITH UNUSUAL CLINICOPATHOLOGICAL FEATURES: A CASE REPORT. BRENO LUIZ DE OLIVEIRA, DIEGO ANTONIO COSTA ARANTES, JORGE ELIAS KALUF TOMEH, ELISMAURO FRANCISCO DE MENDONÇA, MARIA ALVES GARCIA SILVA. UFG. Calcifying epithelial odontogenic tumor (CEOT) is an uncommon odontogenic neoplasm of unusual clinical behavior and distinctive histopathology. A 30-year-old patient came to the Department of Oral Medicine, School of Dentistry at the Federal University of Goiás with the “puffy face right” complaint. He reported previous episodes of swelling with spontaneous improvement. The latest swelling showed no regression. The extra- and intraoral physical examination showed asymmetry in the lower face, swelling in the right jaw region, and absence of the right second molar. The panoramic radiography and computed tomography revealed the presence of an osteolytic lesion (around 3.5 cm), root resorption of the second and third molars, and cortical bone erosion/perforation. An incisional biopsy was performed. The histological findings revealed a proliferation of islands of polyhedral epithelial cells with cell pleomorphism and nuclear intensity, permeated by a fibrous stroma and amyloid deposits. An immunohistochemical panel was performed and the final diagnosis was a CEOT. Patient underwent surgical excision of the lesion. A clinical and radiographic follow-up two years later presented no signs of recurrence.